Road-drag.



. ROAD DRAG. v APPLIOATION FILED APR. 20,1908.

` Patented Sept. 29, 1908. I',

ATTORNEY.

STATES 'Pl"arlnvri,orunon.A

' FRANK E. oTT, vor INDIANAPOLIS, INDIANA.

Roan-DRAG.

l specification of Lettere Patent.

A Patented sept, es', 190s.

ToaZZ- whomjfit may concern.; A

Be 1t knownith'atI, FRANK E. OTT', a citi- ""zen ef the United States,residingat Indianapohs, 1n the c ounty of Marion and Sta-te of.`Indiana, have 1nve`nted certain new and useful Improvements in Road-Dras; and I do declare the following tol be a fu clean-and j eX-@Ctdescription, of the invention, .reference bemg 10 had to thevaccompanying drawings, and to the lletters .and figures of referencemarked-thereon, which form a part of this f specification.

blades; and t This invention relates to drags or scra ers the typethatare designed v-to jbe useV on streets `or highways for the purpose ofleveling or' smoothing the road surfaces.4 Objects ofthe inventionare'toiprovide im- 7L provements in road drags whereby* the rames may bestrengthened wi'thout"mate rially `adding Weight thereto, andto provideImproved adusting apparatus for sera ing e inventlonlconsists'es'sen-tla'lly in providing the drag frame with cam-levers and linksthat operate as owerful knuckle- ]ornt levers for adjusting It e bladeswith respect `to the frame,'the adjustingdevices be- Ving 4so designedas to exert the maximum' force when mest required; and the inventionconsists further inthe novel arts and comblnations and arrangements oparts, as hereinafter particularlv described and defined tional view onthe Fig. 2 when the bla es are vertical; Fig. 4, a `fragmentarysectional view on the lineI B B y in Fig. 2 with blades vertical; Fi 5,aper- `the following claims.

, Referring to the drawings, Fi ure 1 is a perspectiveview ofthe improvedrag with -minor parts broken away; Fig. 2,y a vertical sectional viewapproximately at the .middle of the implement; Fig. 3, a fragmentaryseclane of the' line A A- in e :spective view of one of the camevers,and

line GC in -the drag frame, and-a main-beam tached at 'one of its endstothe middle portion of the draw-bargtwo end `beams b and' t" beingattached atends thereof to the Vends g. 6, `a fra mentary sectional viewon the 1g; 2. 4 .Similar reference characters designate -like elementsor features of construction throughout the drawings.

As preferably constructed thev improved drag comprises. a drawfbar .a'of suitable` length having a `suitable number of holes a 'anda'ltherein into which 4draftl devices may be connected, the draw-bar beinga arti ef 1s a of the draw-bar andekt'ending parallel with the mainbeam, the op osite or rear ends of the beams having a-tiear c. attachedthereto. A- brace d is attached to the draw-bar vand also to the beamb', a similar brace d being attached also to the draw-bar and'to thebeam b, the braces being arranged diagonally tothe parts to which theyare at-l tached. Preferably the beams and ydiagonal braces and also thetie-bar are formed of L- section angle-iron. A platform e is attachedVto the tops of the. beams for carrying the driver an operator.

mentand the p1vots f", g and h are in alinement; Al beam b has also apivot i arranged The end beam b has' two pivots j' and j" s aced asuitable distance apart and the'beam has two similar pivotsrearwardofthe pivot h and another pivot fi arranged rearward of the pivot h.

-Any suitable number of scraping bladesy `may be employed, suitableconnections therev e invention two blades y' and j" are for beingscribin'g t provided in the present instance,one blade provided, butforthe purpose of deaving a'plate 7c secured to the upper portion of therear side thereof and the' other 'blade having a similar plate -cattached to the upler portion of the rear side thereof, one plateliav-mg an angle-flange QZ extending rear- Wardly from the lower edgethereof 4and the i' otherplate having a similar flange Z thereon.

A n arm m is mounted between its ends on Vthe pivot f and asimilar arm.mt is mounted on the pivot g," another similar arm n 1s mounted onthepivot f and alike Varm 'n' is mountedon Athe pivot g', Eachv arm hasva foot o formed on the lower end thereof by which the 4arms m and mareuigidly attached to the flange l and the other two arms n and nare'attached to the flange l', so that the frame 1s supported somewhat abovethe scraping blades, which is desirable when heavy `work 1s required.-The upper lends of thearms mand ots g and g" andthe upper ends of thearms m and n are similarly connected by a rod A relatively shorter arm-1 is connected to t e pivoth and attachedtothe llange Al, a similar '71;are connected by a rod p by means of piv-` ing blades.

' other cam-'lever t/ having a pivot/u that isai-,I

and lanother 'cam-lever t is mounted on the pivot i, the cam-lever thaving an extension arm t for operating oradjustingthe scrap- Thecam-lever t hasl a ivotA u and the cam-lever t has a ivot u. i so the`cam-lever t has a pivote t atis arran ed forward of the plane of thepivots t" an u, the

ranged forward of the plane of the pivots t' and u so that while the'pivots u and u mo've in' arcs above the plane ofthe top ofthe main beamb the other pivots 'v ande move in arcs between the pivots i and t' andthe arms of the scraping blades. A stiff link-w is connect'ed to thepivot s and also to the pivot i; and a similar link w is connected tothe pivot s and also to the pivot c whereby connections are made'betweenthe cam-lever and the arms of the scraper blades for operating andcontrolling the blades. A connectingrod is connected tothe pivots u andu', so as to operate the cani-lever t when the leverarm t is operated. Anotched-.latch bar y is secured to the beam b and is curved upward andrearward adjacent to the lever-arm t, the latter being provided with alatch e to enterthe notches of the latch-bar and hold the lever againstmovement.

Each cam-lever as t', has a pivot-hole t that receives the pivot t or t@and the ivots .as 'D' and u preferably have tliimb es n thereon so thatordinary rivets may be employed as pivots and riveted over against thethimbles so as to secure the pivots to one of the members while theother `member conjipcted by the pivot may rotate on the thim- Inpractical'use when the blades j and j are moved forward as in Fig. 2,the maximum strains will occur, since the blades will. cut

i under or into the ground and require conent'construction it will beobserved thatthe links w and w extend in straight lines bep tween thepivots of the arms r and 1" and the vblades each connected with thebeams and l pivots i and i', so that but little effort is relquired inreadjusting/the lever arm t, and

when the arm t is moved near the vertical osition as indicated-by brokenimes, the everage of the cani-levers .will be lessened,

'but the blades will be in trailing angles andrequire but little effortto readjust them. It will be seen alsoin addition to t-he aforementionedadvantages-there are comparatively few parts comprised in the adjustingapparatus and they are calculated toA be strong,v durable and economicalin use.

Having thus described the invention what is claimed as new, is-ll 1.l Aroad drag including a frame comprising a plurality of frame beams, aplurality of means acting when the blades are being moved toacutenangles to the beams in onev direction'to augment the power ofthelever l means for lockconnecting arms attached to the flanges andhaving stiff links pivotedthereto near to the flanges, a framecomprising a plurality of beams that are pivoted-to the arms, one of thebeamshaving a plurality of cam-levers ivoted thereto that are pivoted tothe inks, and connections between the pluralityV of blades. i

3. A ioad drag including a frame com rising a plurality of Jra'me beams,one o the beams having a plurality of cam-levers pivoted thereto, aplurality of blades each adjustably connected with the frame beams, aplurality of stiff links of which one link is pivoted to one of thecani-levers and operatively connected with one of the blades and anotherlink is pivoted to another one of the camleveis and operativelyconnected with another one of the blades, .and means for operating theplurality of cam-levers simultaneously.

4. A road drag includiner a plurality of frame beams, a lurality of barsattached to opposite ends lo the beams, a plurality of' angle-bracesattached to one of t ie bars and also to two 'of the beams, a luralityofcamlevers and also a plurality o arms pivoted to lone of the beams,said-beam having a latchbar attached thereto, each cam-lever having twopivots thereon, one of the pivots being connected by a rod that isconnected to one of the ivots of another one of the camlevers a atc-h onone of the cam-levers to engage the'latch-bar, a plurality of bladesattached to the arms, a plurality of still,` links each pivoted to oneof the arms and also to the remaining one of the pivots of one of thecani-levers, and other arms attached to the blades and pivotedl to otherones of" the beams, the other arms of the plurality of blades beingconnected togethori 5. In a roaddrag, the combination of a frame, aplurality of blades having each an arm pivoted at its endlto the frameand having a stiffl link. pivoted thereto, each blade having also apluralityof other arms that are pivoted also to the frame, a pluralityol cani devices mounted inovably on the frame and connected to the linksof the plurality of arms for t-he movement and control thereof, andmeans for latching the plurality of devices.

6. In a road drag` 'the combination with a 1 t l i movable to dili'erentangles thereto, a levei 5 frame comprisnnY a iiiain beam and ond formoving the blades to different angles, l beams, of a plurality oi' armspivotcd to the les to the beams lllll teorema f l 3 main heath andhavingeaoh a stil link pivotof the links; one ofthefcamflevers 'havnga1in; v.

ed thereto, each arm having ahlade attached vextension 1everarmthereon,.and afrod oonthereto7 arms attached to the bladesfand necting theplurality iof cam-levers together. l ivoted to the end beams,l aplurality of cam- In testimony whereof'l allx my signature 5- `evers pivoted to theI main beam and ,each in presence of two witnesses.. 1

"having two pivots thereon, one of the two' I j FRANK' EOTT.pivots'being out of alinementwi-th the lanel/'itnesseszl l l ofthe otherpivot and the pivot on whic the HARRY D. PIERsoN, cam-lever is inounted;and connected to one 1 E. T. SILVIUs.

